SINWEEK Memory Foam Folding Mattress, 4 Inch Foldable Trifold Mattress Topper, CertiPUR-US Certified Guest Bed with Cooling Cover & Waterproof Lining
$79.99
Price: $79.99
(as of Sep 17, 2025 10:51:31 UTC – Details)
Product description
IDEAL FOR DAILY LIFE
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
All the materials of SINWEEK mattresses are top quality to make sure it for long-term use, including fabrics, zippers, sewing, liners, and foam.
Multifunctional Tri-Folding Mattress
All You Need in SINWEEK Tri-Folding Mattress
SINWEEK tri-folding mattress is a great choice for camping, playing, road trips or guests.
It is made of 1″ memory foam top layer + 3″ high-density foam, which fits your body, provides comfy sleep and good support.
-When not used for sleep, the SINWEEK tri-folding mattress can be folded into a sofa position, which is very suitable for reading or playing games.
-When not in use, you can also hide this mattress neatly in a closet or under the bed.
DIVERSIFIED CONSTRUCTION 
HIGHLIGHTS 
Bamboo Knit Fabric
Bamboo knit fabric is the ultimate in comfort and softness. It’s also naturally soft and odor resistant, making it a practical choice.
Waterproof Lining Fabric
The durable outer cover and the waterproof lining fabric provide double protection for the internal foam.
Pressure Relief
Lie back and relax, allowing the body-conforming memory foam to relieve all your pressure points and maximize your comfort.
Portable Design
The foldable design transforms the tri-folding foam mattress into a compact shape in seconds, saving space when not in use.
An Excellent Choice for Guests, Camping, Playing, Road trips, and More.
MULTIPURPOSE FOLDING MATTRESS 
Foldable mattress
Add to Cart
Add to Cart
Customer Reviews
4.4 out of 5 stars 993
4.4 out of 5 stars 993
4.3 out of 5 stars 94
4.4 out of 5 stars 2,037
Price
$89.99$89.99
$79.99$79.99
$134.01$134.01
$79.99$79.99
With Portable Bag
✔
✔
✔
✔
With Pillow
✘
✔
✔
✘
Thickness
3 in/4 in
4 in
6 in
3 in/4 in
Size
single、cot、twin、full、queen
single、cot、twin、full、queen
cot、twin
single、cot、twin、full、queen
Cover Material
67% Polyster,37% Viscose
Polyster
Velvet
Velvet
Filler
1″memory foam,3″high density f
1″memory foam,3″high density f
1″memory foam,5″high density f
4″high density foam
63% Polyester,37% Viscose
Imported
Multifunctional Design: Our convertible folding mattress can be changed freely among lounge chair and bed to satisfy your different needs. This versatile mattress will be a perfect solution for small house with limited space which is great for Video gaming, reading, camping and sleeping.
Well Selected Materials: Featuring 1″ memory foam top layer + 3″ high density and thick sponge, this foldable mattress has good elasticity and can perfectly support your body.
Portable & Foldable Design: This sponge mattress can be folded into a compact size when not in use for space-saving. Simply slip the included carrying case over the portable, tri-fold mattress and zip it up to keep it neat and secure while you travel. It is great for your guests, gaming with kids, travelling, camping, and YOGA in any room, mobile home, tent or car.
Easy to Clean and Maintain: Coming with the smooth zipper which is covered with a wrapping cloth, the cover of our foldable sponge mattress can be quickly removed for easy washing. Plus, both cover and sponge materials are well selected for long time use and there is no need for tedious maintenance at ordinary times.
BUY WITH CONFIDENCE: SINWEEK fold mattress is consistent with the high standard of quality. Please allow up to 72 hours for the mattress to fully expand. If you have any questions at all, do not hesitate to contact us.
Customers say
Customers find the folding mattress comfortable for camping and sleepovers, with good quality and easy storage. The mattress is foldable and easy to transport, and customers consider it worth the price. The thickness and firmness receive mixed feedback – while some find it thick enough and firm enough to hold them flat, others note it doesn’t reach 4 inches and is too firm. The size also gets mixed reviews, with some appreciating the full size while others find it too short in length.
8 reviews for SINWEEK Memory Foam Folding Mattress, 4 Inch Foldable Trifold Mattress Topper, CertiPUR-US Certified Guest Bed with Cooling Cover & Waterproof Lining
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Stephanie Harrelson –
Super Comfortable and Convenient – Great Purchase!
I’m very happy with this memory foam tri-fold mattress! It’s extremely comfortable and actually larger than I expected, which was a pleasant surprise. The foam is supportive yet soft, making it perfect for guests, camping, or even just lounging.It feels durable and well-made, and I love that it comes with a carrying case—it makes it so easy to store and take on the go. Setup is quick and simple, and folding it back up is just as easy.I’m especially glad I’m not sleeping on an air mattress anymore—this is so much more comfortable and reliable. Overall, a great buy. Portable, comfy, and worth every penny. Highly recommend!
Ellie Rose –
Great for camping and sleepovers!
Why did you pick this product vs others?:Good price and great quality. Purchased to go camping inside a 4 person tent and it really saved my back and made the experience semi glamping. If you place the mattress in the corner there’s enough space on the side and foot of mattress to walk in and for storage. Folds up nicely in the case. Have used for sleepovers for adults, teens, and kids since. Would say it is cushiony for individuals under 200 lbs. Tip: Get a fitted sheet made for the depth of your trifold mattress. Foldability:Trifold w caseSize:Full sizeEase of use:Very easy to use.
Tamtatamtamtam –
Arrived with flaw
UPDATE 9/2025: The seller reached out to apologize for the error and kindly offered a generous discount on my purchase price. It’s obvious that Sinweek strives to provide great customer service, so I’ve added an extra star to my original review.—For weeks I researched the perfect memory foam mattress to replace the one in our teardrop trailer. I decided on this tri-fold style from Sinweek because it came with a bag, was the right price point, and of course the reviews were mostly good.As others suggested, I unwrapped it (in the trailer) where it was going to live and allowed to fully inflate. I knew that it’d initially look a little wonky due to the mattress being compressed for so long, but I didn’t expect to immediately see a huge flaw in the assembly. It looks as though it was constructed in a hurry which left a huge open gap in the seam. It’s also sewn in a way that stretches the fabric from one side to the other which makes the gusseted sides look really uneven. And while I like the idea of the outer cover being washable, I’m scared what will happen in the washer or when I try to stuff this thing back in it’s ill- shaped case.The only positive things I can say about this foam mattress is that fits the specific dimensions of our trailer and is comfortable to sleep on. I debated getting the 6″ but settled on the 4″ and it works for us. Just like with our previous mattress, we’ve placed a fitted sheet over it to keep it clean while we camp, but I do worry about it falling apart sooner than expected and the seam completely ripping open with normal use.
CJ –
Pretty comfortable portable sleeping solution
This is probably 4.5 stars but I’ll round up. I originally ordered a 6 inch trifold from a different seller but the delivery was delayed and I needed a sleeping mat ASAP. So I had to go back to square one with my search, and I found this mat that was able to ship quickly. 5/5 for quick, on time shippingWe received in the afternoon and opened it to expand/air out. Within a few hours, it had expanded significantly, and we slept it on later that night. The full size is a good size without being too large when folded up. It’s surprisingly comfortable, even with two adults sleeping on it. Neither of us woke with back aches. I’d say because of its thinness, it’s a little firmer than I’d prefer at only 4 inches. But it doesn’t feel like you’re sleeping on a hard floor either – and it’s better than an air mattress for sleeping two people who are different sizes. I’m typically a back sleeper but found it more comfortable to sleep on my side on this mat.It’s a nice compact solution if you need the space. I also like that it came with a storage bag. I didn’t notice any strong or noxious smell upon opening.I can’t speak to longevity since we only just received it but we will be traveling more this summer and see how it holds up.4/5 for comfort5/5 for portability
Mom –
Super comfortable
Excellent quality and very comfortable (even for my 6’4″ dad). Highly recommended. Its foldable with a carry case that has large handle. Very convenient and easy to store.
Dina Dommett –
Good value, comfy lightweight mattress
Lightweight yet comfy! I use this as a spare bed in my cellar for my cats to hang out, but it is comfy enough for me to sleep all night on it.
Kindle Customer –
Really comfy according to my mother in law~
I don’t have a lot of room and needed a bed for my mother-in-law to stay on and fold up to be stored away when she’s not visiting. Its plush, light and easy to store. My only complaint is that I wish they offered a duvet-style cover for it.
Osvaldo Infante –
duermo super comodo, regula muy bien la temperatura corporal.